To　investigate　self-organization　rule　and　control　measurements　of　bidirectional　pedestrian　flows,　the　microscopic　pedestrian　characteristics　were　analyzed　under　bidirectional　flows　based　on　two　fundamental　characteristics　(walking　speed　and　turning　angle)　at　different　volumes,　by　using　the　method　of　pedestrian　experiments.　The　lane　formation　phenomenon　was　quantitatively　studied　and　three　phases　were　identified.　Then,　the　optimized　measures　were　presented　which　a　proposal　of　adding　separating　strap　was　raised　based　on　flow　ratio.　The　efficiency　and　safety　of　the　countermeasures　were　demonstrated　through　a　before-and-after　comparison.　Thus,　the　proposal　of　adding　separating　strap　based　on　flow　ratio　can　be　effective　in　relieving　conflicts.　©　2017,　Editorial　Department　of　Journal　of　Beijing　University　of　Technology.　All　right　reserved.